Science  People  Locations  Timeline
Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Home > Biochemistry


Biochemistry is the chemistry of life. Biochemists study the elements, compounds and chemical reactions that are controlled by enzymes and take place in all living organisms.

Biochemistry is focused on the structure and function of cellular components, such as proteins, carbohydrates, lipids, nucleic acids, and other biomolecules. Recently biochemistry has focused more specifically on the chemistry of enzyme-mediated reactions, and on the properties of proteins.

The biochemistry of cell metabolism has been extensively described. Other areas of biochemistry include the genetic codeThe genetic code is a set of rules, which maps DNA sequences to proteins in the living cell through the mechanism of protein synthesis. Nearly all living things use the same genetic code, called the standard genetic code and all use small variations of it ( DNADeoxyribonucleic acid DNA is a nucleic acid which carries genetic instructions for the biological development of all cellular forms of life and many viruses. DNA is sometimes referred to as the molecule of heredity as it is inherited and used to propagate, RNARNA may also stand for the Republic of New Africa Ribonucleic acid RNA is a nucleic acid consisting of a string of covalently-bound nucleotides. It is biochemically distinguished from DNA by the presence of an additional hydroxyl group, attached to each p), protein synthesis, cell membraneA component of every biological cell, the cell membrane (or plasma membrane is a thin and structured bilayer of phospholipid and protein molecules that encapsulate the cell. It separates a cell's interior from its surroundings and controls what moves in a transport, signal transductionIn biology, signal transduction is any process by which a cell converts one kind of signal or stimulus into another. Processes referred to as signal transduction often involve a sequence of biochemical reactions inside the cell, which are carried out by e and energy decomposition cycles .

1 Development of biochemistry

The dawn of biochemistry may have been the discovery of the first enzyme, diastaseDiastase (from the Greek word for separate) is a group of enzymes which catalyses the breakdown of starch into glucose. It was the first enzyme discovered, in 1833 by Anselme Payen, who found it in malt solution. Today, diastase means any &alpha &beta or, in 1833Events January 3 Britain seizes control of the Falkland Islands in the South Atlantic. June 6 U. President Andrew Jackson becomes the first President to ride a train. September 29 The infant Isabella II becomes Queen of Spain, under the regency of her mot by Anselme Payen. In 1828, Friedrich Wöhler published a paper about the synthesis of urea, proving that organic compounds can be created artificially, in contrast to the common belief of the time that organic compounds can only be made by living organisms. Since then, biochemistry has advanced, especially since the mid- 20th century, with the development of new techniques such as chromatography, X-ray diffraction, NMR, radioisotopic labelling, electron microscopy and molecular dynamics simulations. These techniques allowed for the discovery and detailed analysis of many molecules and metabolic pathways of the cell, such as glycolysis and the Krebs cycle.

Today, the findings of biochemistry are used in many areas, from genetics to molecular biology and from agriculture to medicine. The first application of biochemistry was probably the making of bread using yeast, about 5000 years ago.



Read more »

Non User